- Add hex dependency for --key hex decoding
- Add KeyArgs (--key, --key-file, --password) as clap arg group on top-level CLI
- Replace hardcoded KEY constant with resolve_key() supporting hex and file sources
- Refactor pack/unpack to require key parameter, inspect accepts optional key
- Wire CLI key resolution to archive functions in main.rs
- Inspect works without key (header only) or with key (full TOC listing)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Create src/lib.rs re-exporting all modules as public
- Update main.rs to use encrypted_archive:: imports instead of local mod declarations
- Add dev-dependencies: tempfile, assert_cmd, hex-literal, predicates
